7797980

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{20521}}^1$

素因数の和:20549

約数の個数: 24

約数和(自身を含む): 17238480

約数和(自身を除く): 9440500

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 20521, 41042, 82084, 102605, 205210, 389899, 410420, 779798, 1559596, 1949495, 3898990, 7797980]

約数ペア:

[(1, 7797980), (2, 3898990), (4, 1949495), (5, 1559596), (10, 779798), (19, 410420), (20, 389899), (38, 205210), (76, 102605), (95, 82084), (190, 41042), (380, 20521)]